Astro-Mania teaches all the important facts about 38 astronomical objects such as planets and stars. It has a learning database that includes essays, images, and lists of all the important facts for each of the 38 space objects. The space objects include the nine planets, stars and star types, asteroids

euphOrbit version 1.0 is a simple tool designed to simulate the motions of planetary bodies in space. The primary design philosophy of this program was that it had to simulate asteroids speeding through our Solar System close to "true life". Initial positions of planets and asteroids are computed using NASA

Satellite Image Browser is a Shareware Mac OS X application that can be used to display and print topographical satellite images. Satellite Image Browser is a Shareware Mac OS X application that can be used to display and print topographical satellite images.

Satellite Image Browser is a Shareware Mac OS X application that can be used to display and print topographical satellite images. Satellite Image Browser is a Shareware Mac OS X application that can be used to display and print topographical satellite images.

Millennia Calendar displays date and time for any locations on the Earth; includes 12 traditional and modern calendars (Julian, Byzantine, Gregorian, Indian, Ancient Egyptian, Coptic, Ethiopian, Hebrew, Islamic, Khayam, Persian, Slavic-Aryan); spans over a period of 8.5 thousand years (7.5 thousand years into

Moon Phase Calculator is simple and easy to use tool that allows you to calculate the phase of the Moon for any time in the past or future and to search for the next or previous full moon, new moon or first or last quarter.The day, month, and year can be changed using the keyboard or mouse buttons on the

In cosmology, dark energy is a hypothetical form of energy which permeates all of space and has strong negative pressure. According to the theory of relativity, the effect of such a negative pressure is qualitatively similar to a force acting in opposition to gravity at large scales. Invoking such an

Alcyone Ephemeris is an accurate and fast astronomical ephemeris calculator covering the period 3000 BC to AD 3000. It calculates heliocentric, geocentric, and topocentric positions of the Sun (Earth), Moon, planets, small bodies (asteroids, comets), and fixed stars in ecliptical, equatorial, and horizontal

How fast does gravity travel? What is it about mass that causes the force to exist? Is gravity a particle? Gravity has raised many unanswered questions throughout the ages. It is a force that we are all accustomed to in our daily lives - and yet how much of the subject do we really understand? This